Boiler water circulating pump air tightness test bench

Abstract

The utility model belongs to the technical field of circulating pump production, and particularly relates to a boiler water circulating pump air tightness test bench which comprises a test bench body, a test seat for placing a pump body is arranged on the test bench body, a test device and a test meter which are used for testing the pump body are further arranged on the test bench body, the test seat is arranged in a horizontal mode, and the test meter is arranged on the test bench body. The test bench is provided with a first sealing plug which is driven by an electric push rod to plug one end of a liquid inlet / outlet of the pump body, and a second sealing plug which is driven by the electric push rod to plug the other end of the liquid inlet / outlet of the pump body. It can be understood that firstly, an internal guide wheel is additionally arranged outside the horizontal testing seat, the taking and placing convenience of the pump body during testing is effectively improved, secondly, a limiting sleeve and a limiting groove on the testing seat are matched with a limiting mechanism, the stability of the pump body on the testing seat during testing is ensured, and finally the limiting mechanism is linked with an electric push rod, so that the testing efficiency is improved. And the use convenience is improved while stable testing is ensured, so that the testing efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of circulating pump manufacturing technology, and in particular relates to a boiler water circulating pump air tightness test bench. Background Technology

[0002] Boiler water circulation pumps are essential equipment in boiler systems. Their main function is to circulate water or steam from inside the boiler to various parts of the boiler, maintaining the normal operation of the system. These pumps are commonly used in industrial boilers or heating systems such as hot water boilers, steam boilers, and nuclear power plants to ensure the stability of water flow and the efficient operation of boiler heat exchangers.

[0003] To ensure the production quality of boiler water circulation pumps, it is necessary to conduct airtightness testing on them. Since boiler water circulation pumps are relatively large and are often long cylindrical, the existing motor airtightness testing benches are not compatible with larger boiler water circulation pumps.

[0004] To address the aforementioned issues, this application proposes a horizontal boiler water circulation pump air tightness test bench. Utility Model Content

[0005] The purpose of this invention is to provide a test bench for the air tightness of a boiler water circulation pump, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a test bench for the airtightness of a boiler water circulating pump. The test bench includes a test stand with a test base for placing the pump body. The test bench also includes testing equipment and a test gauge for testing the pump body. The test base is horizontally oriented. The test bench has a first sealing plug that, driven by an electric actuator, seals one end of the pump body's inlet and outlet. It also includes a second sealing plug that, driven by an electric actuator, seals the other end of the pump body's inlet and outlet. The second sealing plug has a perforated vent that communicates with the inside of the pump body and is connected to an adapter. The adapter is connected to the testing equipment via a flexible hose and the test gauge. The test bench also has a limiting mechanism that is linked to the extension and retraction of the electric actuator. When the electric actuator extends, it engages the limiting mechanism with the test base, causing the pump body to be positioned at the upper limit of the test base. Conversely, when the electric actuator retracts, it disengages the limiting mechanism from the test base, thus releasing the pump body from its position on the test base.

[0008] Furthermore, the upper end and front end of the test seat are both open, and the test seat is provided with several guide wheels along the pump body pick-up and drop path. The rear end of the test seat is integrally provided with a limiting sleeve that matches the outer diameter of the pump body.

[0009] Further, the front end of the limiting sleeve is provided with a limiting groove matched with the inlet and outlet of the pump body, and a slope for automatically guiding the inlet and outlet is arranged between the front end of the test seat and the limiting groove.

[0010] Further, the limiting mechanism comprises a mounting frame fixed outside the test seat, a vertical sliding seat fixed on the mounting frame, and a limiting plate vertically sliding in the vertical sliding seat, and the limiting plate is matched with the limiting groove after being lifted to limit the inlet and outlet of the pump body.

[0011] Further, a column gear is fixed on the side surface of the limiting plate, a column gear meshed with the driven gear plate is rotatably arranged on the mounting frame, and a driving gear plate meshed with the column gear is horizontally slidably arranged on the test bench.

[0012] Further, the limiting plate is vertically lifted by horizontal sliding of the driving gear plate and under the action of the column gear and the driven gear plate.

[0013] Further, an adapter plate is fixed at one end of the driving gear plate, and the adapter plate is fixedly connected with the output end of the electric push rod.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a horizontal test seat, which improves the operation convenience and stability of the test work, and cooperates with the guide wheel to make the pump body easier to take and place. One end of the pump body is blocked by the first sealing plug, and the other end is sealed by the second sealing plug while being connected with the test equipment and test table, so that the test function of the pump body is achieved. The first sealing plug and the second sealing plug are driven by the electric push rod, which can ensure accurate docking and stability.

[0016] The utility model discloses a limiting sleeve, a limiting groove and a limiting mechanism, which can stably limit the pump body in the test seat, thereby ensuring the stability of the pump body during testing, guaranteeing the stability of the test data, and enabling the limiting mechanism to be linked with the electric push rod in extension and retraction. The pump body can be stably tested, and the operation is convenient, so that the test work is more reliable.

[0017] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor.

[0019] Figure 1The utility model is the schematic view of the utility model in the testing state;

[0020] Figure 2 The utility model is the structure schematic view under the normal state of the utility model;

[0021] Figure 3 The utility model is the structure schematic view of the test seat amplification in the utility model;

[0022] Figure 4 The utility model is the structure schematic view of the limiting mechanism amplification in the utility model;

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] In the drawings: 1, test table;2, test seat;21, guide wheel;22, limiting sleeve;23, limiting groove;24, inclined surface;3, first sealing plug;4, second sealing plug;5, adapter;6, test equipment;7, test table;8, electric push rod;9, limiting mechanism;91, mounting frame;92, vertical sliding seat;93, limiting plate;94, driven tooth plate;95, column gear;96, driving tooth plate;97, adapter plate;10, pump body. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In the description of the utility model, it is understood that the terms 'opening', 'upper', 'lower', 'thickness', 'top','middle', 'length', 'inner', 'periphery' and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to Figures 1-4As shown, the utility model is a kind of furnace water circulating pump air-tightness test bench, including test bench 1, test seat 2 of placing pump body 10 is provided on test bench 1, test bench 1 still is equipped with the test equipment 6 and test table 7 for pump body 10 test, test seat 2 is horizontally arranged, test bench is equipped with the first sealing plug 3 of the drive of through electric push rod 8 makes pump body 10 inlet-outlet one end plugging, still include the second sealing plug 4 of the drive of through electric push rod 8 and make pump body 10 inlet-outlet other end plugging, second sealing plug 4 inside is penetrated with the air hole that communicates with the inside of pump body 10 and is communicated with adapter 5, adapter 5 is connected with test equipment 6 after through hose and after test table 7, test bench still is equipped with the stop gear 9 of the telescopic linkage with electric push rod 8, after extension electric push rod 8 drives stop gear 9 and test seat 2 cooperation after making pump body 10 limit on test seat 2, conversely, after retraction electric push rod 8 drives stop gear 9 and the cooperation of test seat 2 is separated, pump body 10 is limited on test seat 2 at this time, two electric push rods 8 and first sealing plug 3, second sealing plug 4 coaxial arrangement in the embodiment, ensure that the first sealing plug 3, second sealing plug 4 between sealing reliability after electric push rod 8 is pushed.

[0028] Wherein, test seat 2 upper end and front end are both open settings, test seat 2 is equipped with several guide wheels 21 along pump body 10 take and place path, test seat 2 rear end is integrally provided with the limit sleeve 22 that cooperates with the outside diameter of pump body 10, guide wheel 21 is distributed several in the embodiment along the radial direction of test seat 2 and also along the circumferential direction, the multiple guide wheels 21 that are provided can form support inside test seat 2 with pump body 10 at the same time facilitate to take and push, improve pump body 10 test convenience.

[0029] Wherein, limit sleeve 22 front end is equipped with the limit groove 23 that cooperates with the inlet-outlet of pump body 10, be equipped with the inclined plane 24 of the automatic guide of inlet-outlet between test seat 2 front end and limit groove 23, the setting of inclined plane 24 in the embodiment makes pump body 10 when pushing into test seat 2 make no need to accurately align inlet-outlet, ensure the position accuracy of inlet-outlet on test seat 2 while convenient operation, so that inlet-outlet can be accurately docked with first sealing plug 3 and second sealing plug 4, make test work more reliable.

[0030] Wherein, limit mechanism 9 includes mounting bracket 91 fixed on the outside of test seat 2 and vertical sliding seat 92 fixed on mounting bracket 91, and limit plate 93 vertically sliding in vertical sliding seat 92, limit plate 93 rises and cooperates with limit groove 23 to limit inlet-outlet of pump body 10, in the embodiment, Figure 1 As shown, the limit plate 93 in this state is in the state after rising, cooperates with limit groove 23 to limit pump body 10 in test seat 2, to ensure the stability of pump body 10 when testing.

[0031] The limiting plate 93 is fixed with a column gear 95 on the side, the column gear 95 is rotatably arranged on the mounting frame 91 and engaged with the driven tooth plate 94, and the test bench 1 is horizontally slidably arranged with the driving tooth plate 96 engaged with the column gear 95; the limiting plate 93 is vertically lifted by the horizontal sliding of the driving tooth plate 96 and the driving of the column gear 95 and the driven tooth plate 94, and in the embodiment, the horizontal movement force driven by the electric push rod 8 is changed into the vertical movement force through the cooperation between the driving tooth plate 96, the column gear 95 and the driven tooth plate 94, so that the linkage between the limiting plate 93 and the electric push rod 8 is realized, and the structure is flexible, reliable and simple.

[0032] The driving tooth plate 96 is fixed with an adapter plate 97 at one end, and the adapter plate 97 is fixedly connected with the output end of the electric push rod 8, and in the embodiment, the extension and retraction of the electric push rod 8 are linked with the working state of the limiting mechanism 9, so that the convenience of use is ensured while the reliability during testing is ensured.

[0033] It can be understood that firstly, the horizontal test seat and the internal guide wheel effectively improve the convenience of taking and placing the pump body during testing, secondly, the limiting sleeve and the limiting groove on the test seat cooperate with the limiting mechanism to ensure the stability of the pump body on the test seat during testing, and finally, the limiting mechanism is linked with the electric push rod to ensure stable testing while improving the convenience of use, thereby improving the testing efficiency.

[0034] One specific application of the embodiment is as follows: Figure 2 As shown in the figure, the normal state of the device is shown, at this time, the pump body 10 to be tested is placed on the test seat 2 with the bottom facing the test seat 2, the liquid inlet and outlet of the pump body 10 are approximately kept horizontal, the guide wheel 21 is used to push the pump body 10 into the test seat 2 until the bottom enters the limiting sleeve 22, at this time, the liquid inlet and outlet of the pump body 10 enter the limiting groove 23 guided by the inclined surface 24;

[0035] The two electric push rods 8 are simultaneously pushed outwards, the first sealing plug 3 completely blocks one end of the pump body 10, the second sealing plug 4 blocks the other end of the pump body 10 but is internally provided with an air passage in communication with the adapter 5, at this time, the pump body 10 is connected with the test equipment 6, the test equipment 6 pressurizes the inside of the pump body 10, the test equipment 6 is closed after reaching the test pressure, the passages in the pump body 10, the adapter 5 and the test table 7 are in a high-pressure state, and the air tightness of the pump body 10 is judged by observing the data of the test table 7.

[0036] Wherein the electric push rod 8 pushes the first sealing plug 3 and the second sealing plug 4, and the limiting mechanism 9 is also driven to work, as follows, the electric push rod 8 moves the adapter plate 97 and the driving tooth plate 96, the driving tooth plate 96 meshes with the column gear 95 and drives the driven tooth plate 94 to move vertically, so that the limiting plate 93 is lifted in the vertical sliding seat 92, when the electric push rod 8 is pushed forward, the vertical sliding seat 92 is lifted, and the pump body 10 is blocked to avoid moving to the opening end of the test seat 2, when the electric push rod 8 is retracted, the limiting mechanism 9 is retracted at the same time, at this time, the pump body 10 can move to the opening end of the test seat 2, and the linkage effect is achieved.

[0037] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the above disclosed utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A test bench for the air tightness of a boiler water circulating pump, comprising a test bench (1), wherein a test seat (2) for placing a pump body (10) is provided on the test bench (1), and the test bench (1) is further provided with a test device (6) and a test table (7) for testing the pump body (10), characterized in that: The test stand (2) is horizontally arranged. The test stand is provided with a first sealing plug (3) that is driven by an electric push rod (8) to seal one end of the inlet and outlet of the pump body (10). It also includes a second sealing plug (4) that is driven by an electric push rod (8) to seal the other end of the inlet and outlet of the pump body (10). The second sealing plug (4) has an air hole that communicates with the inside of the pump body (10) and is connected to an adapter (5). The adapter (5) is connected to the test equipment (6) through a hose and a test gauge (7). The test stand is also provided with a limiting mechanism (9) that is linked to the extension and retraction of the electric push rod (8). When the electric push rod (8) extends, it drives the limiting mechanism (9) to cooperate with the test stand (2) so that the pump body (10) is limited on the test stand (2). Conversely, when the electric push rod (8) retracts, it drives the limiting mechanism (9) to disengage from the test stand (2), and the pump body (10) is disengaged from the limit on the test stand (2).

2. The boiler water circulation pump air tightness test bench according to claim 1, characterized in that: The test seat (2) has an opening at both the upper and front ends. Several guide wheels (21) are provided on the test seat (2) along the pick-up and put-out path of the pump body (10). A limiting sleeve (22) that matches the outer diameter of the pump body (10) is integrally provided at the rear end of the test seat (2).

3. The boiler water circulation pump air tightness test bench according to claim 2, characterized in that: The front end of the limiting sleeve (22) is provided with a limiting groove (23) that cooperates with the inlet and outlet of the pump body (10), and the front end of the test seat (2) is provided with an inclined surface (24) that automatically guides the inlet and outlet of the liquid.

4. The boiler water circulation pump air tightness test bench according to claim 3, characterized in that: The limiting mechanism (9) includes a mounting bracket (91) fixed on the outside of the test seat (2) and a vertical slide (92) fixed on the mounting bracket (91), and a limiting plate (93) that slides vertically in the vertical slide (92). After the limiting plate (93) rises, it cooperates with the limiting groove (23) to limit the inlet and outlet of the pump body (10).

5. The boiler water circulation pump air tightness test bench according to claim 4, characterized in that: A spur gear (95) is fixed to the side of the limiting plate (93), and a spur gear (95) that meshes with the driven gear plate (94) is rotatably provided on the mounting bracket (91). An active gear plate (96) that meshes with the spur gear (95) is horizontally slidably provided on the test bench (1).

6. The boiler water circulation pump air tightness test bench according to claim 5, characterized in that: The limiting plate (93) is driven to move vertically up and down by the horizontal sliding of the active toothed plate (96) and the action of the spur gear (95) and the driven toothed plate (94).

7. The boiler water circulation pump air tightness test bench according to claim 5, characterized in that: One end of the active toothed plate (96) is fixed with an adapter plate (97), and the adapter plate (97) is fixedly connected to the output end of the electric push rod (8).

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